混凝土灌芯纤维石膏板组合墙体的恢复力试验
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摘要
对2片混凝土灌芯纤维石膏板进行水平往复荷载作用下的恢复力试验,初步探讨这种抗侧力构件的破坏特征、变形能力和延性等受力特性.试验结果表明,混凝土灌芯纤维石膏板受力时作为一个整体共同工作,结构通过纤维石膏板的开裂耗散能量,提高了结构的抗震性能,使结构具有较好的延性.借助AD INA软件建立实体模型分别对混凝土芯柱和纤维石膏板以及组合墙体进行数值模拟,有限元计算结果和试验吻合较好,有限元模型正确合理,可以较真实地模拟结构的受力性能.
The restoring-force test of two fiber-reinforced plasterboards filled with concrete under horizontal cycle loading were carried out.Based on the experiments,the behavior of the damage state,the capacity of distortion and the ductility features were investigated.Testing results indicate that the concrete core and fiber-reinforced plasterboard work together to resist load effects,the earthquake energy is dissipated by the plasterboard cracking,and the seismic behavior and displacement ductility are increased.By using the finite element analysis program ADINA,the calculation model was set up to analyze the behavior of concrete core,fiber-reinforced plasterboard and the composite wall respectively.The results calculated by FEM are coincident with the testing ones,indicating that the FEM model is appropriate for this case.
The restoring-force test of two fiber-reinforced plasterboards filled with concrete under horizontal cycle loading were carried out.Based on the experiments,the behavior of the damage state,the capacity of distortion and the ductility features were investigated.Testing results indicate that the concrete core and fiber-reinforced plasterboard work together to resist load effects,the earthquake energy is dissipated by the plasterboard cracking,and the seismic behavior and displacement ductility are increased.By using the finite element analysis program ADINA,the calculation model was set up to analyze the behavior of concrete core,fiber-reinforced plasterboard and the composite wall respectively.The results calculated by FEM are coincident with the testing ones,indicating that the FEM model is appropriate for this case.
引文
[1]中国建筑科学研究院.JCJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.China Academy of Building Research.JCJ101-96 Specifica-tion of Testing Methods for Earthquake Resistant Building[S].Beijing:China Architectural Industry Press,1997(inChinese).
[2]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.Zhu Bolong.Seismic Test for Structures[M].Beijing:Seis-mological Press,1989(in Chinese).
[3]翟希梅,唐岱新.混凝土小型空心砌块空腔墙体的恢复力试验研究[J].哈尔滨建筑大学学报,2001,34(6):26-31.Zhai Ximei,Tang Daixin.Restoring force of small concretehollowblock cavity wall[J].Journal ofHarbin University ofCivil Engineering and Architecture,2001,34(6):26-31(inChinese).
[4]Lefas L D,Kotsovos M D,Ambraseys N N.Behavior of re-inforced concrete structural walls:Strength,deformationcharacteristics and failure mechanism[J].ACI StructuralJournal,1990,87(1):23-31.
[5]Lefas L D,Kotsovos MD.Strength and deformation charac-teristics of reinforced concrete walls under load reversals[J].ACI Structural Journal,1990,87(6):716-726.
[6]戴航,关国雄,张佑启.带缝钢筋混凝土高剪力墙抗震性能研究[J].东南大学学报:自然科学版,1997,27(11):39-44.Dai Hang,Guan Guoxiong,Zhang Youqi.Studies on thebehavior of reinforced concrete slit shear walls[J].JournalofSoutheast University:Natural Science Edition,1997,27(11):39-44(in Chinese).
[7]沈荣熹,崔琪,李清海.新型纤维增强水泥基复合材料[M].北京:中国建材工业出版社,2004.Shen Rongxi,Cui Qi,Li Qinghai.New Type Fiber Rein-forced Cement-Based Composites[M].Beijing:China Build-ing Materials Press,2004(in Chinese).
[8]Wu Yufei,Dare MP.Axial and shear behavior of glass fiberreinforced gypsum wall panels:Test[J].Journal ofCompos-ites for Construction,2004(8):569-578.
[2]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.Zhu Bolong.Seismic Test for Structures[M].Beijing:Seis-mological Press,1989(in Chinese).
[3]翟希梅,唐岱新.混凝土小型空心砌块空腔墙体的恢复力试验研究[J].哈尔滨建筑大学学报,2001,34(6):26-31.Zhai Ximei,Tang Daixin.Restoring force of small concretehollowblock cavity wall[J].Journal ofHarbin University ofCivil Engineering and Architecture,2001,34(6):26-31(inChinese).
[4]Lefas L D,Kotsovos M D,Ambraseys N N.Behavior of re-inforced concrete structural walls:Strength,deformationcharacteristics and failure mechanism[J].ACI StructuralJournal,1990,87(1):23-31.
[5]Lefas L D,Kotsovos MD.Strength and deformation charac-teristics of reinforced concrete walls under load reversals[J].ACI Structural Journal,1990,87(6):716-726.
[6]戴航,关国雄,张佑启.带缝钢筋混凝土高剪力墙抗震性能研究[J].东南大学学报:自然科学版,1997,27(11):39-44.Dai Hang,Guan Guoxiong,Zhang Youqi.Studies on thebehavior of reinforced concrete slit shear walls[J].JournalofSoutheast University:Natural Science Edition,1997,27(11):39-44(in Chinese).
[7]沈荣熹,崔琪,李清海.新型纤维增强水泥基复合材料[M].北京:中国建材工业出版社,2004.Shen Rongxi,Cui Qi,Li Qinghai.New Type Fiber Rein-forced Cement-Based Composites[M].Beijing:China Build-ing Materials Press,2004(in Chinese).
[8]Wu Yufei,Dare MP.Axial and shear behavior of glass fiberreinforced gypsum wall panels:Test[J].Journal ofCompos-ites for Construction,2004(8):569-578.
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